chambered russian

• передёрнутый

  contorted, distorted, twisted

  distorted, misrepresented, twisted

  racked, cocked, chambered

• досыла́емый

  being sent additionally, being forwarded, being rammed home, being chambered (e.g., a cartridge)

• досыла́вший

  having sent (to completion), having forwarded, having chambered (a cartridge)

• передёрнувший

  having reloaded (a weapon), having chambered (a round), having worked the bolt

  having twitched, having grimaced, contorted (in pain), having shrugged (one's shoulders)

Examples

• Солдат, досылавший патрон в патронник, действовал быстро.

  The soldier who had chambered the round acted quickly.

• Досылаемый патрон застрял в патроннике.

  The round being chambered got stuck in the chamber.